The Giants announced tonight that right fielder Hunter Pence has been placed on the 10-day disabled list due to a left hamstring strain. Fellow outfielder Mac Williamson is up from Triple-A Sacramento to take Pence’s spot on the roster. The loss of Pence is the latest blow to a Giants roster that has seen a number of key players go down with injuries this year, though Pence’s performance hasn’t been anywhere near what one would expect from the typically productive slugger. The 34-year-old has been at least 18 percent better than the league-average hitter in each of the past four seasons, per park-adjusted metrics OPS+ and wRC+, and he’s batted a combined .281/.339/.463 in that time. However, this year, he’s mustered just a .243/.289/.338 batting line through his first 149 plate appearances.

A few more notable injury scenarios from around the league…

Giants closer Mark Melancon is on the mend and appears to be progressing well, as the right-hander told reporters that he threw a 22-pitch mound session today (Twitterlinks via John Shea of the San Francisco Chronicle and Alex Pavlovic of NBC Sports Bay Area. Melancon said that he was “pretty much full go,” and Pavlovic notes that he can be activated as soon as tomorrow. Derek Law has been filling in as San Francisco’s closer with Melancon on the shelf.

An MRI of Drew Pomeranz’s left triceps didn’t reveal any new injuries, and the Red Sox lefty has been cleared to resume baseball activities, tweets Alex Speier of the Boston Globe. News on Tyler Thornburg, though, isn’t as good. The Sox are still trying to get to the bottom of the shoulder woes Thornburg is experiencing, as Evan Drellich of CSNNE.com tweets. Thornburg is set for additional testing and medical consultations this week. He has yet to take the hill since arriving in Boston via trade over the winter.

The Indians will be without Brandon Guyer for the next four to six weeks due to a sprained left wrist, manager Terry Francona told reporters today (via MLB.com’s Jordan Bastian). Guyer will be completely shut down for a week before he begins the next phase of his rehab. Bastian also notes that ace Corey Kluber tossed a 20-pitch session today but still needs a more aggressive mound session and a simulated game before he’s cleared to begin a rehab assignment. And if those injuries aren’t enough for Cleveland, the Indians’ No. 2 starter, Carlos Carrasco, exited tonight’s game with tightness in his left pectoral muscle (Twitter link via Bastian). There’s no word on the severity of that issue, though it seems reasonable to expect further word following the completion of tonight’s game.

Steve Pearce became the latest member of the Blue Jays to land on the disabled list, as the infielder/outfielder suffered a calf injury last night and was placed on the 10-day DL today following an MRI. The Jays announced the injury as a right calf strain and did not offer a timeline on Pearce’s absence. Right-hander Leonel Campos is up from Triple-A to give the relief corps a quick boost, though as Sportsnet’s Ben Nicholson-Smith tweets, that gives the Jays a two-man bench and a nine-man bullpen. As such, it seems likely that a reliever will be sent down soon. On a more positive note for Toronto fans, the team also announced that Troy Tulowitzki began a rehab assignment today, suggesting that he’s quite near to a return.

Padres outfielder Travis Jankowski has been on the DL since late April, and MLB.com’s AJ Cassavell now tweets that it’ll be at least another six weeks before the defensive standout is ready to return to the team. Jankowski hit the DL with what was termed a “deep bone bruise,” though reports at the time suggested that doctors believed there could be a hairline fracture in his foot. Per Cassavell, Jankowski’s most recent tests did indeed reveal a fracture, which lengthens the amount of time that he’ll be away from the club.

Padres center fielder Travis Jankowski hit the 10-day disabled list earlier this week with what the team called a “deep bone bruise” in his right foot, but there’s now a concern that Jankowski may have a hairline fracture as well, reports MLB.com’s Barry M. Bloom. If that’s the case, the 25-year-old could be out more than a month. Bloom quotes manager Andy Green as saying the team doctors aren’t yet able to determine if there’s a fracture (perhaps due to the swelling), but they’ll be cautious either way. Even if there’s no fracture, it sounds as if Jankowski can expect to miss more than the minimum 10 days. “They told me I’d be in the boot for another week to 10 days,” Jankowski tells Bloom. Jankowski turned in a marginal performance at the plate in 2016, hitting .245/.332/.313 in 383 plate appearances, but he played strong defense in center field and provided significant baserunning value with 30 steals.

More on the NL West…

Ian Desmond is nearing a return to the Rockies, manager Bud Black tells Nick Groke of the Denver Post. Desmond has been with the team but is splitting off to work at the team’s extended Spring Training complex this weekend, where he’ll begin playing in rehab games. According to Groke, Desmond will play multiple positions as he preps for the possibility of logging some outfield work in addition to his time at first base. Black tells Groke that Desmond is “closer than you think” to returning. Previously, Black has mentioned the possibility of Desmond working in the outfield against lefties to keep the Mark Reynolds’ hot right-handed bat in the lineup.

Left-hander Alex Wood will make at least one more start for the Dodgers, manager Dave Roberts told reporters (link via MLB.com’s Ken Gurnick). However, it’s also possible that Wood, who tossed six one-hit innings against the Giants in his most recent outing, will remain in the rotation even when Rich Hill is ready to be activated from the disabled list. “I think Alex has done everything he can to warrant a case to continue to be in the rotation,” said Roberts. “…I can’t say with 100 percent confidence when Rich will be back as a starter. There is talk about Rich potentially coming back sooner in a role out of the ’pen and that would leave an opportunity for Woody — who has pitched really well — to stay in the rotation.” Roberts has suggested on multiple occasions that Hill could be eased back from his blister problems as a reliever, though given the magnitude of his contract and last season’s excellence as a starter, one has to imagine that the team would eventually prefer that Hill rejoin the rotation.

Roberts also conceded the fact that outfielder Andre Ethier will be sidelined until June, “at the earliest,” as Andy McCullough of the L.A. Times writes. The Dodgers have been without Ethier since he was diagnosed with a herniated disk in his back late in Spring Training, and he’s yet to resume baseball activities more than five weeks after receiving an epidural injection. “The time that it’s taken, at this point, it’s almost like [he’ll need] a spring training again,” said Roberts. “…I’m not saying it needs to be a dedicated six weeks. But from the time of baseball activity, it’s easily fair to say [it’ll take] a month after that.” In Ethier’s absence, Andrew Toles has seen quite a bit of playing time, though he’s batting just .207/.258/.362 through 62 plate appearances.

It’s well known that the Mets would like to make a trade, particularly a trade involving Jay Bruce, since the team currently has an abundance of outfielders. But the Mets are adamant that they receive a player in return who will help them, rather than just a fringe prospect and relief from Bruce’s 2017 salary, Newsday’s Marc Carig writes. “It does put you in a different situation, and it affects other clubs’ expectations and it affects our expectations,” says GM Sandy Alderson. “But it only takes interest by two or three teams in a player to overcome all of that. That’s why we don’t jump at the first opportunity.” The Mets have received trade offers for Bruce, Carig writes, but they’ve mostly been proposals for salary dumps. Here are a couple more quick trade notes involving outfielders.

Before acquiring Adam Eaton, the Nationals spoke to the Reds about a trade involving center fielder Billy Hamilton, ESPN’s Jayson Stark writes. The Nats came away feeling, though, that the Reds are in no rush to make a deal. As we noted yesterday, the Reds believe Hamilton hasn’t peaked yet and would have a hard time replacing his defense. For the Nats, a Hamilton trade surely wouldn’t have been the blockbuster deal the Eaton one was — Hamilton’s speed obviously is spectacular, but his struggles to hit surely would have limited his value. He also has only three years of control remaining, compared to Eaton’s five.

Manager Andy Green confirms that other teams have contacted the Padres about outfielder Travis Jankowski, Kyle Glaser of Baseball America tweets. We noted yesterday that the Rangers had asked about Jankowski, with some writers speculating about a deal involving Jankowski and infielder Hanser Alberto. Since then, the Rangers have re-signed Carlos Gomez, which makes their need for outfield help less acute. The Fort Worth Star-Telegram’s Jeff Wilson tweeted today, though, that while the Rangers anticipated Gomez would play center field for them, they were still looking for center field help. So perhaps Jankowski could still be a fit in Texas, albeit a somewhat more speculative one. The Rays could also be a fit for Jankowski, Marc Topkin of the Tampa Bay Times tweets.

Jankowski, of course, is not a big, or even medium, name, as Desmond, Gomez and potential trade target Billy Hamilton are. Jankowski graded as an outstanding defender in 2016, however, and could keep the Rangers strong up the middle. He posted an excellent 12.8 UZR and 8 Defensive Runs Saved in 2016, accumulating 2.1 Wins Above Replacement even as he batted just .245/.332/.313.

“[The] reality is that the better that we get defensively, the better we’re going to make our starting pitching and relief pitching core,” says Rangers manager Jeff Banister, via Sullivan. “The situation last year, [we were] a club that won 95 games; however, we still need to get better on defense.”

Another possible current option for the Rangers in center field is Delino DeShields, although it appears he is available in a trade, as Comcast SportsNet California’s Joe Stiglich tweets. DeShields struggled to get going in 2016, batting just .209/.275/.313.

The Padres, meanwhile, have Manuel Margot to man center field in the long term, and could have interest in Rangers 24-year-old infielder Hanser Alberto, who’s struggled to get established in the big leagues over the past two seasons. Alberto also hit a modest .275/.302/.411 at Triple-A Round Rock in 2016, suggesting he’s unlikely to hit much. He could, however, hold interest for Padres GM A.J. Preller, who helped sign Alberto as a member of the Rangers’ front office in 2009. Also, like Jankowski, Alberto has fared well defensively in limited big-league time, grading out well at both shortstop and second base. While the Padres have plenty of options at second, they don’t have as many at short, where their depth chart is topped by youngster Luis Sardinas. A possible Jankowski-for-Alberto swap, then, could help both teams upgrade defensively at positions of need.